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用stata软件爬虫抓取交易所上市公司年报
26 个回复 - 13242 次查看 用stata软件爬虫抓取交易所上市公司年报 1.上交所年报爬虫下载上海证券交易所网站:http://www.sse.com.cn/ 2.深交所年报下载 深圳证券交易所网站:http://www.szse.cn/ 附件为对应的Stata程序(命令),可 ...2018-12-18 20:11 - 画心199488 - 现金交易版
Winners and losers in US-China scientific research collaborations
3 个回复 - 500 次查看 【作者(必填)】 【文题(必填)】Winners and losers in US-China scientific research collaborations 【年份(必填)】 【全文链接或数据库名称(选填)】https://link.springer.com/article/10.1007/s10734-019- ...2022-7-13 22:11 - 日新少年 - 求助成功区
An Introduction to Stata for Health Researchers, Fifth Edition
5 个回复 - 1385 次查看 An Introduction to Stata for Health Researchers, Fifth Edition PDF版本 An Introduction to Stata for Health Researchers, Fifth Edition epub版本 epub电子书阅读器 受朋友之托上传 ...2022-6-25 06:22 - fugangxx - Stata专版
Cohort Analysis in Social Research Beyond the Identification Problem
0 个回复 - 1417 次查看 书名:Cohort Analysis in Social Research Beyond the Identification Problem 作者:William M. Mason· Stephen E. Fienberg 年份:1985 出版社:springer 页码:4012022-5-6 07:29 - huspa307 - 计量经济学与统计软件
AER2021原文Knowledge Spillovers and Corporate Investment in Scientific Research
2 个回复 - 634 次查看 【作者(Ashish Arora; Sharon Belenzon; Lia Sheer)】 【文题(Knowledge Spillovers and Corporate Investment in Scientific Research)】 【年份(2021-3-1)】 【全文链接或数据库名称(http://dx.doi.org/1 ...2022-4-22 14:28 - 7871982010 - 求助成功区
A research on driver nodes identification in Chinese interbank networks: based o
1 个回复 - 489 次查看 【作者(必填)】 Yong Zhi ,Hongbing Ouyang &Man Xue 【文题(必填)】 A research on driver nodes identification in Chinese interbank networks: based on the controllability theory of complex network ...2021-12-11 10:44 - zx8387 - 求助成功区
Bifurcation Theory for Hexagonal Agglomeration in Economic Geography
2 个回复 - 872 次查看 Bifurcation Theory for Hexagonal Agglomerationin Economic Geography2021-6-6 10:13 - zhengrong - 区域经济学
Forecasting in GARCH models with polynomially modified innovations
1 个回复 - 326 次查看 【作者(必填)】 66 【文题(必填)】 Forecasting in GARCH models with polynomially modified innovations【年份(必填)】 77 【全文链接或数据库名称(选填)】https://www.sciencedirect.com/science/article/ab ...2021-8-8 11:53 - internet.hzx - 求助成功区
Stochastic Model Specification Search for Time-Varying Parameter VARs
1 个回复 - 415 次查看 【作者(必填)】 23 【文题(必填)】 Stochastic Model Specification Search for Time-Varying Parameter VARs[/backcolor] 【年份(必填)】 23 【全文链接或数据库名称(选填)】https://www.tandfonline.com/doi ...2021-6-17 02:54 - internet.hzx - 求助成功区
Knowledge Spillovers and Corporate Investment in Scientific Research
4 个回复 - 1441 次查看 【作者(必填)】 [*]Ashish Arora [*]Sharon Belenzon [*]Lia Sheer 【文题(必填)】 Knowledge Spillovers and Corporate Investment in Scientific Research【年份(必填)】 2021 【全文链接或数据库名称(选 ...2021-5-3 16:21 - 钱学森64 - 求助成功区
Hierarchical analysis of Chinese financial market based on manifold structure
1 个回复 - 631 次查看 【作者(必填)】Yan Huang[/backcolor] & Jiansong Wan[/backcolor] 【文题(必填)】Hierarchical analysis of Chinese financial market based on manifold structure 【年份(必填)】2021 【全文链接或数据库 ...2021-4-27 10:21 - halleyg - 文献求助专区
变量取对数后的一阶差分(First difference of LOG)≈增长率(percentage change)
3 个回复 - 3602 次查看 以下这个解答很精彩,原汁原味借鉴过来,供大家参考交流。 First difference of LOG = percentage change: When used inconjunction with differencing, logging converts absolute differences into relative (i ...2021-2-20 21:26 - yinpeiwei - Forum
Asia Pacific Journal of Human Resources期刊难度
6 个回复 - 2151 次查看 请教各位家人!这个期刊审稿周期久吗? 大神们有什么审稿快一点的人力、组织行为方面的ssci期刊推荐,想快点拿到一些意见,拒稿也无所谓呜呜呜2021-10-31 18:38 - doule - 学术道德监督
Stanford researchers are using artificial intelligence
0 个回复 - 787 次查看 Virtual and augmented reality headsets are designed to place wearers directly into other environments, worlds and experiences. While the technology is already popular among consumers for its immersive ...2022-1-13 14:59 - oliyiyi - LATEX论坛
An Introduction to Stata for Health Researchers, Fifth Edition
1 个回复 - 555 次查看 【作者(必填)】Svend Juul and Morten Frydenberg 【文题(必填)】An Introduction to Stata for Health Researchers, Fifth Edition 【年份(必填)】 2021 【全文链接或数据库名称(选填)】 https://www.stat ...2021-12-2 10:59 - np84 - 文献求助专区
Sarcoptiformes plumicoles des oiseaux Coraciiformes
0 个回复 - 854 次查看 【作者(必填)】Gaud J. 【文题(必填)】 Sarcoptiformes plumicoles des oiseaux Coraciiformes d'Afrique. II. Parasites des Alcedinidae. 【年份(必填)】1979. 【全文链接或数据库名称(选填)】 Revue de ...2022-3-18 11:55 - 569066236 - 文献求助专区
求助RES文献Quasi-Experimental Shift-Share Research Designs
0 个回复 - 545 次查看 【作者(必填)】 Kirill Borusyak, Peter Hull, Xavier Jaravel 【文题(必填)】 Quasi-Experimental Shift-Share Research Designs 【年份(必填)】 2022 【全文链接或数据库名称(选填)】https://doi.org/10.109 ...2022-3-3 21:31 - Superficial000 - 文献求助专区
基于科学关联的战略管理研究:Scientific apophenia in strategic management researc
1 个回复 - 703 次查看 基于科学关联的战略管理研究 Scientific apophenia in strategic management research 基于科学关联的战略管理研究 Scientific apophenia in strategic management research 基于科学关联的战略管理研究 ...2020-4-8 14:39 - Lotus_ss - 现金交易版
Artificial Intelligence and Algorithmic Bias: Source, Detection, Mitigation, and
2 个回复 - 1238 次查看 【作者(必填)】Runshan Fu, Yan Huang, Param Vir Singh 【文题(必填)】Artificial Intelligence and Algorithmic Bias: Source, Detection, Mitigation, and Implications 【年份(必填)】2020 【全文链接或 ...2021-4-10 00:28 - dreamtree - 求助成功区
Variance prior specification for a basket trial design using Bayesian hierarchic
1 个回复 - 577 次查看 【作者(必填)】Kristen M Cunanan, Alexia Iasonos, Ronglai Shen, Mithat Gönen 【文题(必填)】Variance prior specification for a basket trial design using Bayesian hierarchical modeling 【年份(必 ...2021-2-18 10:51 - dxystata - 文献求助专区
Genome-wide analysis identifies novel susceptibility loci for myocardial infarct
1 个回复 - 319 次查看 【作者(必填)】 Jaana A Hartiala, Yi Han, Qiong Jia, James R Hilser, Pin Huang, Janet Gukasyan, William S Schwartzman, Zhiheng Cai, Subarna Biswas, David-Alexandre Trégouët 【文题(必填)】 ...2021-2-5 12:16 - pengchy - 求助成功区
Genome-wide analysis identifies novel susceptibility loci for myocardial infarct
0 个回复 - 719 次查看 【作者(必填)】 Jaana A Hartiala, Yi Han, Qiong Jia, James R Hilser, Pin Huang, Janet Gukasyan, William S Schwartzman, Zhiheng Cai, Subarna Biswas, David-Alexandre Trégouët, Nicholas L Smith, Th ...2021-2-4 17:22 - pengchy - 求助成功区
Social identification and / or perception of similarity: An approach to differen
1 个回复 - 490 次查看 【作者(必填)】 Katherine Saldivia Ojedaa Débora Mansilla Cofréa Claudia Andrea Estrada Goica 【文题(必填)】 Social identification and / or perception of similarity: An approach to differ ...2021-1-8 08:31 - 江夏雁 - 求助成功区
Swift Sense of Community: Resourcing Artifacts for Rapid Community Emergence
4 个回复 - 825 次查看 求帮忙下载AMJ新文章:Swift Sense of Community: Resourcing Artifacts for Rapid Community Emergence https://journals.aom.org/doi/10.5465/amj.2019.04102020-10-1 08:48 - oxfordyy - 求助成功区
权威养老平台「myLifeSite」深度解读美国CCRC潜在客户画像:年龄结构、入住决策、服务
0 个回复 - 1201 次查看 撰文丨魏圆源 前言: 自从2008年,中国第一个真正意义上的中高端CCRC建成,也就是位于华东的“上海亲和源·康桥社区”。经过12年的发展,上到一、二线城市,下到三、四线城市,CCRC模式已经遍地开花,成为中国养 ...2020-9-23 15:42 - AgeClub - 学术道德监督
【学习笔记】9.16 Python爬虫基础 Part2 HTTP基本原理 1.URL(Uniform Resourc ...
2 个回复 - 620 次查看 9.16 Python爬虫基础 Part2 HTTP基本原理 1.URL(Uniform Resource Locator)2020-9-16 23:58 - 田JL - Forum
【学习笔记】To overcome the anxiety and frustration of life, you must fi ...
1 个回复 - 631 次查看 To overcome the anxiety and frustration of life, you must first learn how to do their own masters. 要克服生活的焦虑和沮丧,得先学会做自己的主人。2020-8-3 17:54 - 李沐寒521521 - Forum
Tax Differences Global Supply Chain Architecture
1 个回复 - 340 次查看 【作者(必填)】 Michael Kopel and Clemens Löffler 【文题(必填)】 Tax Differences Global Supply Chain Architecture 【年份(必填)】 2020 【全文链接或数据库名称(选填)】https://papers.ssrn.com/so ...2020-9-3 13:20 - timesever - 求助成功区
【学习笔记】To overcome the anxiety and frustration of life, you must fi ...
1 个回复 - 299 次查看 To overcome the anxiety and frustration of life, you must first learn how to do their own masters. 要克服生活的焦虑和沮丧,得先学会做自己的主人。2020-8-18 08:17 - 李沐寒521521 - Forum
GeoTIFF文件格式在ArcMap中无法直接打开?
1 个回复 - 1733 次查看 从NGDC官网上下载了Global Radiance Calibrated Product全球辐射定标数据(图1)。文件解压后有5个G,解压后只有一个GeoTiff格式的文件(图2),应该可以用ArcMap直接加载显示,但是加载出错显示“Could Not Open Th ...2019-7-29 10:20 - soniacrystal111 - 爱问频道
【学习笔记】If I\'ve got one bad addiction, it\'s got to be thepurch ...
1 个回复 - 286 次查看 If I\'ve got one bad addiction, it\'s got to be thepurchasing of way too many books. 如果说我有一个不良嗜好的话,那就一定是购买了太多的书。2020-8-12 06:31 - ccwwccww - Forum
When gamification backfires: the impact of perceived justice on online community
1 个回复 - 671 次查看 【作者(必填)】 Thomas Leclercq, Ingrid Poncin, Wafa Hammedi, Avreliane Kullak & Linda D. Hollebeek 【文题(必填)】 When gamification backfires: the impact of perceived justice on online community co ...2020-8-4 16:40 - 江夏雁 - 求助成功区
Accuracy of simplified printed circuit board finite element models
2 个回复 - 672 次查看 【作者(必填)】 【文题(必填)】Accuracy of simplified printed circuit board finite element models 【年份(必填)】2010 【全文链接或数据库名称(选填)】https://www.researchgate.net/publication/2204546 ...2020-7-18 23:49 - victorbian - 求助成功区
【学习笔记】5.2早读 The two most powerful forces in life are invisible. ...
0 个回复 - 450 次查看 5.2早读 The two most powerful forces in life are invisible. The first is love, the second is time. 《离家同盟》2020-5-2 07:33 - 不见思念 - Forum
Uniform projection nested Latin hypercube designs
5 个回复 - 507 次查看 【作者(必填)】Hao Chen[/backcolor], Yan Zhang[/backcolor] & Xue Yang[/backcolor] 【文题(必填)】Uniform projection nested Latin hypercube designs 【年份(必填)】2020 【全文链接或数据库名称(选填) ...2020-4-8 20:19 - ozj9325 - 求助成功区
Effects of different sources of social support and social conflict
1 个回复 - 343 次查看 Abbey, A., Abramis, D. J., & Caplan, R. D. (1985). Effects of different sources of social support and social conflict on emotional well-being. Basic and Applied Social Psychology, 6, 111–129.2020-3-30 11:39 - aronson - 求助成功区
求全文Differences in travelers' perceptions of popular tourist destinations
1 个回复 - 357 次查看 【作者(必填)】Starosta, Kejo; Onete, Cristian Bogdan; Budz, Sonia; Krutwig, Michael 【文题(必填)】Differences in travelers' perceptions of popular tourist destinations estimated by a LSTM neural n ...2020-3-16 12:19 - xiaojia0459 - 文献求助专区
Asia Pacific Journal of Operational Research 文献一篇
2 个回复 - 714 次查看 【作者(必填)】Weimin Ma, Rong Cheng, Hua Ke 【文题(必填)】Impacts of power structure on supply chain with a store brand 【年份(必填)】2018 【全文链接或数据库名称(选填)】https://www.worldsci ...2020-2-22 18:47 - xiecuihua2005 - 求助成功区
【学习笔记】The importance of indifference in scientific research
2 个回复 - 322 次查看 The importance of indifference in scientific research2020-2-4 11:37 - astrogirlss - Forum
【学习笔记】plt.rcParams[\'font.sans-serif\']=[\'Simhei\'] plt. ...
0 个回复 - 683 次查看 plt.rcParams[\'font.sans-serif\']=[\'Simhei\'] plt.rcParams[\'axes.unicode_minus\']=False2019-12-30 13:59 - ﹌夏末初~ - Forum
【学习笔记】plt.rcParams[\'font.sans-serif\']=[\'Simhei\'] plt. ...
0 个回复 - 1856 次查看 plt.rcParams[\'font.sans-serif\']=[\'Simhei\'] plt.rcParams[\'axes.unicode_minus\']=False2019-12-30 13:58 - ﹌夏末初~ - Forum
Ecosystem-specific advantages in international digital commerce
0 个回复 - 948 次查看 Ecosystem-specific advantages in international digital commerce [*] Journal of International Business Studies[/backcolor][/backcolor]December 2019, Volume 50, Issue 9[/backcolor], pp 1448–1463 ...2019-12-17 21:36 - 凝香雪海 - 国际商务
Conducting research interviews / Jennifer Rowley
0 个回复 - 410 次查看 Conducting research interviews / Jennifer Rowley2019-11-2 10:13 - mingfeiyu - 商学院
Perceived Overqualification and Psychological Well-Being Among Immigrants The Mo
0 个回复 - 556 次查看 【作者(必填)】Wassermann, Maria[/backcolor] Hoppe, Annekatrin[/backcolor] 【文题(必填)】Perceived [/backcolor]Overqualification[/backcolor] and Psychological Well-Being Among Immigrants The Modera ...2019-10-28 21:34 - bxmzone - 文献求助专区
【学习笔记】Classifying inventory Merchandising company. inventory Manu ...
0 个回复 - 627 次查看 Classifying inventory Merchandising company. inventory Manufaturing company -Raw Material -Work in Process (WIP) -Finished Goods JIT = just in time =stockless production=zero inventories Perpetua ...2019-10-7 11:18 - miseryangel - Forum
新歌速递 |The Archer-Taylor Swift
1 个回复 - 520 次查看 歌曲:The Archer专辑:The Archer歌手:Taylor SwiftTaylor Swift全新专辑『Lover』第三首先行单曲「The Archer/射手座」,这是专辑里面曲序排行第五首的单曲,“第五首将是她最真诚、情感、个人和脆弱”的单曲。当 ...2019-7-26 08:45 - 杨明凡 - 休闲灌水
【学习笔记】You must take your place in the circle of life. Why are you ...
3 个回复 - 2447 次查看 You must take your place in the circle of life. Why are you keeping this curiosity door locked.2019-7-13 07:41 - 充实每一天 - Forum